CN202612800U - Electromagnetic pulse valve with common channel - Google Patents
Electromagnetic pulse valve with common channel Download PDFInfo
- Publication number
- CN202612800U CN202612800U CN 201220277374 CN201220277374U CN202612800U CN 202612800 U CN202612800 U CN 202612800U CN 201220277374 CN201220277374 CN 201220277374 CN 201220277374 U CN201220277374 U CN 201220277374U CN 202612800 U CN202612800 U CN 202612800U
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- Prior art keywords
- valve
- common
- gas
- use tunnel
- electromagnetic
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Abstract
The utility model provides an electromagnetic pulse valve with a common channel. The electromagnetic pulse valve with the common channel comprises a valve body and is characterized in that an air inlet channel and the common channel are arranged in the valve body, a valve cover and an electromagnetic pilot valve. An inlet end of the air inlet channel is communicated with a front air chamber and an outlet end is located on the inner wall of the electromagnetic pilot valve. One end of the common channel is located on the inner wall of the electromagnetic pilot valve while the other end of the common channel is communicated with a rear air chamber. An air releasing channel is arranged in the electromagnetic pilot valve. The inlet end and the outlet end of the air releasing channel are located on the inner wall and at the outer edge of the electromagnetic pilot valve. A ring of circular bumps is formed on the outer edge of the valve core. According to the electromagnetic pulse valve with the common channel provided by the utility model, the close time is ensured by the air inlet channel while the start time is determined by the air releasing channel, so that the contradiction caused by a throttling hole in the current electromagnetic pulse valve is overcome, and the close and start speeds of the electromagnetic pulse valve can be improved greatly.
Description
Technical field
The utility model relates to a kind of electromagnetic impulse valve.
Background technique
Electromagnetic impulse valve is the generating means of pulse blowing bag type dust precipitator deashing air-flow, and its working principle is to utilize the open and close of the variation in pressure realization sentinel valve of former and later two air chambers of diaphragm.
Existing electromagnetic pulse valve arrangement is as shown in Figure 1 usually; Comprise valve body 1, in valve body 1, be provided with delivery outlet 9, on valve body 1, be provided with valve gap 2; The air cavity that will be positioned at valve body 1 and valve gap 2 by diaphragm 3 is divided into preceding air chamber 4 and rear gas chamber 5; On diaphragm 3, be provided with throttle orifice 8, on valve gap 2, be provided with electromagnetic pilot head 6, be provided with moving iron core 7 in the electromagnetic pilot head 6.Its working procedure is: when connecting pressurized gas, pressurized gas gets in the rear gas chamber 5 through the throttle orifice on the diaphragm 38, and the pressure of rear gas chamber 5 makes diaphragm 3 be close to delivery outlet 9 to make electromagnetic impulse valve be in closed condition.Move when electrical signal makes the moving iron core 7 in the electromagnetic pilot head 6, vent hole 10 is opened, rear gas chamber's 5 rapid decompressions, and the pressure of preceding air chamber 4 moves after making diaphragm 3, and pressurized gas makes electromagnetic impulse valve be in opening state through delivery outlet 9 winding-ups.
This shows that pressurized gas makes rear gas chamber's 5 build-up pressures through throttle orifice 8, and sentinel valve cuts out.Electrical signal moves the moving iron core 7 in the electromagnetic pilot head 6, and vent hole 10 is opened, and makes rear gas chamber's 5 rapid decompressions, moves behind the diaphragm 3, and pressurized gas makes electromagnetic impulse valve be in opening state through delivery outlet 9 winding-ups.The foundation and the disappearance of rear gas chamber's 5 pressure depended in the opening and closing that this shows electromagnetic impulse valve.The time of rear gas chamber's 5 build-up pressures is then depended on the speed that pressurized gas injects, and the speed that pressurized gas injects depends on the latus rectum size of throttle orifice 8, and in order to shorten the time of build-up pressure, the latus rectum of throttle orifice 8 is the bigger the better.The time that rear gas chamber's 8 pressure disappear is then depended in the unlatching of sentinel valve, and the time that pressure disappears is depended on the latus rectum of throttle orifice 8 and vent hole 10 again, and in order to shorten the time that pressure disappears, it is more little good more that the latus rectum of throttle orifice 8 needs again.This shows that the latus rectum of throttle orifice 8 can improve the closing velocity of sentinel valve greatly, but influenced the opening speed of sentinel valve, become the major obstacle of the opening and closing speed that improves sentinel valve.
Summary of the invention
The purpose of the utility model has provided a kind of electromagnetic impulse valve that can improve unlatching and closing velocity.
In order to achieve the above object, the technological scheme of the utility model has provided a kind of common-use tunnel electromagnetic impulse valve, comprises valve body; In valve body, be provided with delivery outlet, on valve body, be provided with valve gap, the air cavity that will be positioned at valve body and valve gap by diaphragm or valve block is divided into preceding air chamber and rear gas chamber; On valve gap, be provided with electromagnetic priority valve; In electromagnetic priority valve, be provided with spool, it is characterized in that: in valve body, valve gap and electromagnetic priority valve, have gas-entered passageway and common-use tunnel, the entrance point of gas-entered passageway is connected with preceding air chamber; Its outlet end is positioned on the inwall of electromagnetic priority valve; One end of common-use tunnel is positioned on the inwall of electromagnetic priority valve, and its other end is connected with rear gas chamber, in electromagnetic priority valve, has bleed passage; The entrance point of bleed passage and outlet end lay respectively on the inwall and outer rim of electromagnetic priority valve, on the outer rim of spool, are formed with a circle annular protrusion;
When closing; Annular protrusion is between the entrance point of end of common-use tunnel and bleed passage; Annular protrusion and the electromagnetic priority valve inner wall sealing between the entrance point of an end of common-use tunnel and bleed passage cooperates, and common-use tunnel is obstructed with bleed passage and be connected with gas-entered passageway, and the pressurized gas before sending in the air chamber gets in the gas-entered passageway; Thereby get into rear gas chamber through common-use tunnel, diaphragm or valve block are close to delivery outlet under pressure;
During unlatching; Annular protrusion is between the outlet end of end of common-use tunnel and gas-entered passageway; Annular protrusion and the electromagnetic priority valve inner wall sealing between the outlet end of an end of common-use tunnel and gas-entered passageway cooperates, and common-use tunnel is obstructed with gas-entered passageway and be connected with bleed passage, and pressurized gas gets into via common-use tunnel and derives in the bleed passage in the rear gas chamber; Move after under the effect of diaphragm or the valve block gas pressure in the air chamber before entering, make pressurized gas pass through the delivery outlet winding-up.
Preferably; Axis with said spool is a center line; Said bleed passage and said gas-entered passageway are arranged in a side of center line, and said common-use tunnel is arranged in the opposite side of center line, wherein; The entrance point of said bleed passage is positioned at the top of the outlet end of said gas-entered passageway, and the height of an end of said common-use tunnel is between the outlet end of the entrance point of said bleed passage and said gas-entered passageway.
Preferably; Form the gap between the outer rim of the part of said spool below reaching above the said annular protrusion and the inwall of said electromagnetic priority valve, said pressurized gas gets into said common-use tunnel or gets into said bleed passage from said common-use tunnel from said gas-entered passageway via this gap.
In the utility model; By the gas-entered passageway decision shut-in time, the opening time is then determined by bleed passage, thereby has solved in the existing electromagnetic impulse valve; Because the contradiction that existence brought of throttle orifice can improve closing and opening speed of electromagnetic impulse valve greatly.
Description of drawings
Fig. 1 is the structural representation of existing electromagnetic impulse valve;
Fig. 2 is in the schematic representation of closed condition for a kind of common-use tunnel diaphragm type electromagnetic impulse valve in the present embodiment;
Fig. 3 is in the schematic representation of opening state for a kind of common-use tunnel diaphragm type electromagnetic impulse valve in the present embodiment;
Fig. 4 is in the schematic representation of closed condition for a kind of common-use tunnel valve block formula electromagnetic impulse valve in the present embodiment;
Fig. 5 is in the schematic representation of opening state for a kind of common-use tunnel valve block formula electromagnetic impulse valve in the present embodiment.
Embodiment
For making the utility model more obviously understandable, now with preferred embodiment, and conjunction with figs. elaborates as follows.
The common-use tunnel structure that the utility model proposes can be applicable to diaphragm type electromagnetic impulse valve and valve block formula electromagnetic pulse valve simultaneously, below is that example specifies the utility model with the diaphragm type electromagnetic impulse valve.
Like Fig. 2 and shown in Figure 3, the disclosed a kind of common-use tunnel electromagnetic impulse valve of present embodiment comprises valve body 1; In valve body 1, be provided with delivery outlet 9, on valve body 1, be provided with valve gap 2, the air cavity that will be positioned at valve body 1 and valve gap 2 by diaphragm 3 is divided into preceding air chamber 4 and rear gas chamber 5; On valve gap 2, be provided with electromagnetic priority valve 15; In electromagnetic priority valve 15, be provided with spool 7, in valve body 1 valve gap 2 and electromagnetic priority valve 15, have gas-entered passageway 11 and common-use tunnel 13, the entrance point of gas-entered passageway 11 is connected with preceding air chamber 4; Its outlet end is positioned on the inwall of electromagnetic priority valve 15; One end of common-use tunnel 13 is positioned on the inwall of electromagnetic priority valve 15, and its other end is connected with rear gas chamber 5, in electromagnetic priority valve 15, has bleed passage 12; The entrance point of bleed passage 12 and outlet end lay respectively on the inwall and outer rim of electromagnetic pilot head 6, on the outer rim of spool 7, are formed with a circle annular protrusion 14.
Wherein, be center line with the axis of spool 7, bleed passage 12 and gas-entered passageway 11 are arranged in a side of center line, 13 opposite sides that are arranged in center line of common-use tunnel.The entrance point of bleed passage 12 is positioned at the top of the outlet end of gas-entered passageway 11, and the height of an end of common-use tunnel 13 is between the outlet end of the entrance point of bleed passage 12 and gas-entered passageway 11.
Form the gap between the outer rim of the part of spool 7 below reaching above the annular protrusion 14 and the inwall of electromagnetic priority valve 15, pressurized gas gets into common-use tunnels 13 or gets into bleed passages 12 from common-use tunnel 13 from gas-entered passageway 11 via this gap.
As shown in Figure 2; When electromagnetic impulse valve is in closed condition; Annular protrusion 14 is between the entrance point of end of common-use tunnel 13 and bleed passage 12, and annular protrusion 14 and electromagnetic priority valve 15 inner wall sealing between the entrance point of an end of common-use tunnel 13 and bleed passage 12 cooperates.At this moment, with separating between gas-entered passageway 11 and common-use tunnel 13 and the bleed passage 12, simultaneously, the gap between the outer rim through spool 7 and the inwall of electromagnetic priority valve 15 makes common-use tunnel 13 be connected with gas-entered passageway 11 through spool 7.Pressurized gas before sending in the air chamber 4 gets in the gas-entered passageway 11, thereby gets into rear gas chamber 5 through common-use tunnel 13, and diaphragm 3 is close to delivery outlet 9 under pressure.
As shown in Figure 3; When electromagnetic impulse valve is in opening state; Spool 7 moves downward; Make annular protrusion 14 between the outlet end of end of common-use tunnel 13 and gas-entered passageway 11, annular protrusion 14 and electromagnetic priority valve 15 inner wall sealing between the outlet end of an end of common-use tunnel 13 and gas-entered passageway 11 cooperates.At this moment; Through spool 7 with separating between bleed passage 12 and common-use tunnel 13 and the gas-entered passageway 11, simultaneously, the gap between the outer rim through spool 7 and the inwall of electromagnetic priority valve 15; Common-use tunnel 13 is connected with bleed passage 12; Pressurized gass get in the bleed passages 12 via common-use tunnel 13 in the rear gas chamber 5 derives, and moves after the effect of diaphragm 3 pressurized gas air chamber 4 in before entering under, makes pressurized gas pass through delivery outlet 9 realizations and jets.
Fig. 4 and the state of closing and opening for the disclosed a kind of common-use tunnel valve block formula electromagnetic impulse valve of instance shown in Figure 5.
Claims (3)
1. a common-use tunnel electromagnetic impulse valve comprises valve body (1), in valve body (1), is provided with delivery outlet (9); On valve body (1), be provided with valve gap (2); The air cavity that will be positioned at valve body (1) and valve gap (2) by diaphragm (3) or valve block is divided into preceding air chamber (4) and rear gas chamber (5), it is characterized in that: on valve gap (2), be provided with electromagnetic priority valve (15), in electromagnetic priority valve (15), be provided with spool (7); In valve body (1) valve gap (2) and electromagnetic priority valve (15), have gas-entered passageway (11) and common-use tunnel (13); The entrance point of gas-entered passageway (11) is connected with preceding air chamber (4), and its outlet end is positioned on the inwall of electromagnetic priority valve (15), and an end of common-use tunnel (13) is positioned on the inwall of electromagnetic priority valve (15); Its other end is connected with rear gas chamber (5); In electromagnetic priority valve (15), have bleed passage (12), the entrance point of bleed passage (12) and outlet end lay respectively on the inwall and outer rim of electromagnetic priority valve (15), on the outer rim of spool (7), are formed with a circle annular protrusion (14);
When closing; Annular protrusion (14) is positioned between the entrance point of an end and bleed passage (12) of common-use tunnel (13); The end that annular protrusion (14) and electromagnetic priority valve (15) are positioned at common-use tunnel (13) cooperates with inner wall sealing between the entrance point of bleed passage (12); Common-use tunnel (13) is obstructed with bleed passage (12) and be connected with gas-entered passageway (11); The pressurized gas of sending in the preceding air chamber (4) gets in the gas-entered passageway (11), thereby gets into rear gas chamber (5) through common-use tunnel (13), and diaphragm (3) or valve block are close to delivery outlet (9) under pressure;
During unlatching; Annular protrusion (14) is positioned between the outlet end of an end and gas-entered passageway (11) of common-use tunnel (13); The end that annular protrusion (14) and electromagnetic priority valve (15) are positioned at common-use tunnel (13) cooperates with inner wall sealing between the outlet end of gas-entered passageway (11); Common-use tunnel (13) is obstructed with gas-entered passageway (11) and be connected with bleed passage (12); The interior pressurized gas of rear gas chamber (5) gets in the bleed passage (12) via common-use tunnel (13) and derives, and moves after under the effect of diaphragm (3) or the valve block gas pressure air chamber (4) in before entering, makes pressurized gas pass through delivery outlet (9) and jets.
2. a kind of common-use tunnel electromagnetic impulse valve as claimed in claim 1; It is characterized in that: the axis with said spool (7) is a center line; Said bleed passage (12) and said gas-entered passageway (11) are arranged in a side of center line; Said common-use tunnel (13) is arranged in the opposite side of center line; Wherein, the entrance point of said bleed passage (12) is positioned at the top of the outlet end of said gas-entered passageway (11), and the height of an end of said common-use tunnel (13) is positioned between the outlet end of entrance point and said gas-entered passageway (11) of said bleed passage (12).
3. a kind of common-use tunnel electromagnetic impulse valve as claimed in claim 1; It is characterized in that: said spool (7) is positioned at above the said annular protrusion (14) and between the inwall of the outer rim of the part of below and said electromagnetic priority valve (15) and forms the gap, and said pressurized gas gets into said common-use tunnel (13) or gets into said bleed passage (12) from said common-use tunnel (13) from said gas-entered passageway (11) via this gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220277374 CN202612800U (en) | 2012-06-12 | 2012-06-12 | Electromagnetic pulse valve with common channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220277374 CN202612800U (en) | 2012-06-12 | 2012-06-12 | Electromagnetic pulse valve with common channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612800U true CN202612800U (en) | 2012-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220277374 Expired - Lifetime CN202612800U (en) | 2012-06-12 | 2012-06-12 | Electromagnetic pulse valve with common channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705528A (en) * | 2012-06-12 | 2012-10-03 | 上海尚泰环保配件有限公司 | Shared-channel electromagnetic pulse valve |
-
2012
- 2012-06-12 CN CN 201220277374 patent/CN202612800U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705528A (en) * | 2012-06-12 | 2012-10-03 | 上海尚泰环保配件有限公司 | Shared-channel electromagnetic pulse valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |
|
| CX01 | Expiry of patent term |